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Finding the Fourth Proportional to 402,175.94, 555,009.47 and 220,904.62

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Solution

The fourth proportional to 402,175.94, 555,009.47 and 220,904.62 is: 304,852.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,175.94 : 555,009.47 = 220,904.62 : x
  2. Step 2: Convert to fraction form
    402,175.94/555,009.47 = 220,904.62/x
  3. Step 3: Cross multiply
    402,175.94x = 555,009.47 × 220,904.62
  4. Step 4: Simplify right side
    402,175.94x = 122,604,154,403.10
  5. Step 5: Solve for x
    x = 122,604,154,403.10/402,175.94
  6. Step 6: Final answer
    x = 304,852.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.